PeachParts Mercedes-Benz Forum - View Single Post - Brake Pedal Lacks Firmness. Not sure what next to do...

JamesDean · #1 10-22-2012, 09:41 AM

Hey everyone,

I thought I had a thread on this topic but evidently not.

I've been trying to chase down my brake pedal feeling crappy for a while now. Compared to my 300D (all stock, with stainless steel lines) the 190E's brake are utter crap, in terms of pedal firmness. With about 1/4 or less of pedal travel on the 300D, I am met with a nice firm feeling. On the 190E I don't get this firmness.

Brake Setup:

190E Master/Booster. Master is new.
E420 Front Calipers, R1 Concepts Rotors, Akebono Euro pads. Calipers are <2 years old.
SL600 Rear Calipers, R1 Concepts Rotors, Akebono Euro pads. Caliper are new.
WRXtra Stainless Steel Brake Lines

I've bled the brakes multiple times with the PowerBleeder at 30 psi. No difference really.
I've swapped out the ABS pump/pressure regulator and re-bled. No difference.

I'm not sure where to go next on this. I've half a mind to just gravity bleed the system. I dont think its a component problem but thats only because swapping/replacing made no significant differences.

I'm open to your thoughts. I'm getting rather tired of my all-stock 300D outbraking my 190E with its massive calipers/rotors.

Thanks!